Finding the Fourth Proportional to 970,197.68, 1,338,873.54 and 540,478.88
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Solution
The fourth proportional to 970,197.68, 1,338,873.54 and 540,478.88 is: 745,861.27
Step by Step Solution
- Step 1: Write the proportion equation
970,197.68 : 1,338,873.54 = 540,478.88 : x - Step 2: Convert to fraction form
970,197.68/1,338,873.54 = 540,478.88/x - Step 3: Cross multiply
970,197.68x = 1,338,873.54 × 540,478.88 - Step 4: Simplify right side
970,197.68x = 723,632,871,360.84 - Step 5: Solve for x
x = 723,632,871,360.84/970,197.68 - Step 6: Final answer
x = 745,861.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.